While on Late Show with David Letterman, Jason Segel explained how the head of a studio forced him to lose weight.
It was for his new movie The Five-Year Engagement and the studio head was worried the audience wouldn't believe Jason could get a girl like his co-star Emily Blunt unless he dropped some weight.
That's kinda mean.
But Jason listened and he ended up dropping 35 pounds after working out twice a day with a trainer who also watched what he ate all day.
But Jason had a trick for sneaking food while on set.
Check out the video (above) to hear his sneaky tricks for extra eating.
Tags: eating, emily blunt, film, food, jason segel, lose weight, movie, pounds, star, studio, the five-year engagement, trainer, weight, working out